... surface. Panels provide manyexcellentcharacteristicsthrough lab testing such as weather-proof ability,chemical resistant, heatinsulation, sound insulation, lightweight, ... alloyCoating: PVDF, FEVE, PolyesterCore : non broken LDPE, fire rate mineral coreSpecification:Panel Thickness: 2mm-6mm, recommend 2mm,3mm ... *High corrosion resistance Nano coating ,Exterior Fire proof aluminum composite panels